Nokia 4A0-105 Exam Practice Test Instant Access

Question 1

IEEE 802.3ah frames must be untagged.

ATRUE

BFALSE

Answer : A

Question 2

Which of the following are true when ports are configured with the IEEE 802.3ah Loopback Control feature? (Choose 3)

AThe loopback control PDU instructs the remote port to enter loopback mode.

BPutting a port in loopback does not affect customer data flow

CBoth ports must rediscover the OAM capabilities of each other once the port is put back into service.

DBoth ports must still send Information PDUs to avoid going back to discovery mode.

EWhen a port is in loopback mode, service mirroring will still work if it is a mirror-source or mirror-destination.

FAll packets, except for information PDUs, are looped back.

Answer : A, D, F

Question 3

An l-VPLS is configured with a service id of 511. What will the value of the l-SID be assuming a default configuration?

AThe 1-SID must be explicitly configured.

BThe 1-SID only supports a range from 1 to 255.

CThe 1-SID will default to 511 .the value of the service-id.

DThel'SIDwilldefaultto131582, the value of the service-id + 131071.

Answer : C

Question 4

H-VPLS solves the data-plane and control-plane problems with the exception of one issue. What is the concern that H-VPLS does not solve?

AIncreased LSP count.

BNumber of TLDP sessions.

CThe amount of network touches.

DFDB consumption.

EIncreased bandwidth and replication.

Answer : D

Topic 3, Volume C

Question 5

Click on the exhibit below.

Assuming there is a full mesh of mesh-SDPs between the PEs within each metro network and a spoke-SDP between PE-C of Metro A and PE-B of Metro B. how is traffic forwarded from PE-A in Metro A to PE-D of Metro B? Select the most accurate statement.

AAn LSP must be configured between PE-A and PE-D for this traffic to be forwarded.

BA VPLS FDB lookup is done at PE-A of Metro A only

CAn SDP must be configured between PE-A of Metro A and PE-D of Metro D for this traffic to be forwarded

DA VPLS FDB lookup is done at PE-A and PE-C of Metro A and PE-B of Metro B

Answer : D

Question 6

What needs to be configured in a VPLS in order to forward customer STP BPDUs transparently?

ASpanning tree must be enabled within the VPLS.

BSpanning tree BPDUs must be untagged.

CSpanning tree BPDUs must be tagged.

DSpanning tree must be disabled within the VPLS.

Answer : D

Question 7

Click on the exhibit below.

Which of the following features can be enabled to eliminate MAC instability when using policy-based forwarding to redirect traffic to a Layer 2 DPI device?

Adiscard-unknown

Bmac-move

Cdisable-learning

Denable-mac-stability

Answer : C

Nokia 4A0-105 Nokia Virtual Private LAN Services Exam Practice Test